Article
Engineering, Environmental
H. Stancin, M. Safar, J. Ruzickova, H. Mikulcic, H. Raclavska, X. Wang, N. Duic
Summary: The use of traditional biomass raises sustainability concerns, but co-pyrolysis of biomass with waste materials, especially plastics, offers a promising alternative for enhanced biofuel production. This method can significantly improve the properties of biomass products, particularly bio-oils.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Green & Sustainable Science & Technology
Saad A. El-Sayed, Mohamed E. Mostafa
Summary: The pyrolysis and co-pyrolysis kinetics of Egyptian olive-pomace and wood dust, as well as their blends, were studied using advanced isoconversional model-free methods and model-fitting methods. The best reaction mechanisms and the synergistic effect of co-pyrolysis were determined. The obtained kinetics parameters were validated using the Coats and Redfern integral method.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Energy & Fuels
Jisong Bai, Xin Fu, Quanwei Lv, Fangjun Chen, Yu Yang, Jun Wang, Wei Gan, Fucan Deng, Chenxuan Zhu
Summary: Co-pyrolysis of sewage sludge with pinewood sawdust was investigated using a thermogravimetric analyzer and fixed bed reactor. The results showed a significant synergistic effect between the two materials, with the highest bio-oil yield and changes in compound production observed at 50% sawdust addition. High temperatures were found to decrease certain compound production and increase hydrocarbon production during co-pyrolysis.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Chemistry, Multidisciplinary
Fengyin Zhou, Xin Qu, Yongxin Wu, Jingjing Zhao, Shuaibo Gao, Dihua Wang, Huayi Yin
Summary: This study presents a strategy for recycling lithium and cobalt from spent lithium ion batteries using a biomass carbothermic reduction approach. The efficient recovery of lithium and cobalt was achieved by using pine sawdust as the reducing agent. Economic and environmental analysis revealed the feasibility and sustainability of this method.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Energy & Fuels
Peng Liu, Li Liu, Zhengzhong Zhou, Yanling Li, Haoran Yuan, Huhetaoli, Tingzhou Lei
Summary: The co-pyrolysis of pine sawdust with aluminum dross was investigated in this study for energy production and safe treatment of ADbiochar composite. The results showed that heavy metals were immobilized in the AD-biochar composite. The enhanced hydrogen production was explained by the formation of C-O-M intermediates between metallic oxides and oxygen-containing functional groups in biomass.
Article
Chemistry, Physical
Linen Xie, Liangcai Wang, Jianbin Zhou, Huanhuan Ma
Summary: This study aimed to investigate the activation and catalytic graphitization mechanisms of non-toxic salts in converting biomass to biochar. Thermogravimetric analysis was used to monitor the thermal behaviors of pine sawdust and sawdust/KCl blends. The results showed that the presence of KCl decreased the resistance to biochar deposition and influenced the reaction mechanisms.
Article
Environmental Sciences
Yiteng Zhang, Jun Hu, Xingxing Cheng, Mudassir Hussain Tahir
Summary: The objective of this study is to explore the energy recovery potential of fermentation residues. The pyrolysis characteristics, kinetics, and modified biochar derived from pine sawdust after fermentation (FPD) were determined and compared with pine sawdust (PD). FPD showed higher comprehensive pyrolysis index (CPI) values and activation energy than PD, and the fermentation enhanced the adsorption capacity of biochar.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Energy & Fuels
Quanwei Lv, Yuting Li, Li'ao Wang, Lingyue Liu, Li Liu, Jisong Bai
Summary: This study investigated the thermal behavior, synergistic effect, and reaction mechanism of co-pyrolysis of oil-based drill cuttings (OBDC) and pinewood sawdust (PS). The results showed a positive synergistic effect in the co-pyrolysis, with the strength increasing as the percentage of PS in the blend increased. The apparent activation energy was evaluated using two model-free methods and the reaction mechanism was found to be a combination of reaction order, accelerating, and nuclei growth and diffusion mechanism.
Article
Materials Science, Multidisciplinary
Liangcai Wang, Linen Xie, Huanhuan Ma, Jianbin Zhou
Summary: The objective of this study was to understand better the interaction mechanisms between pine sawdust and nickel formate by investigating their thermal behavior and calculating activation energy and other parameters. The results showed that the presence of nickel formate facilitated the decomposition of pine sawdust at high temperatures, and the temperature at which positive synergy occurred decreased when the content ratio of the two materials was below 1. Additionally, nickel formate enhanced the resistance to biochar deposition.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Green & Sustainable Science & Technology
H. Stancin, M. Safar, J. Ruzickova, H. Mikulcic, H. Raclavska, X. Wang, N. Duic
Summary: The study demonstrates that adding a small amount of polyurethane can reduce oxygenated compounds in sawdust and increase oil yield; however, the main liquid products are benzenamines that do not meet fuel composition requirements. Analysis of plastic content shows that liquid yield increases while gas yield decreases.
Article
Green & Sustainable Science & Technology
Suqian Gu, Zhiqiang Xu, Yangguang Ren, Yanan Tu, Dingqun Lu, Huan Wang
Summary: Microwave co-pyrolysis of lignite with DCLR was found to enhance the formation of pyrolysis products, increase char yield, and convert DCLR into high-value combustible gases. The chemical structures of co-pyrolysis samples were progressively aromatized with lower O/C ratios and fewer available sites.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Wanzhen Zhong, Xiaoteng Li, Siyi Luo, Weiqiang Tan, Zongliang Zuo, Dongdong Ren
Summary: This study investigated the co-pyrolysis behavior of UF resin and PS as well as the adsorption properties of pyrocarbon for Cr (VI). Thermogravimetric analysis showed that the addition of PS improved the pyrolysis behavior of UF resin. The kinetics and activation energy values were estimated using the FWO method, and it was found that UF resin and PS acted synergistically when UF resin exceeded twice the amount of PS. The adsorption experiments demonstrated that 5UF + PS400 achieved 95% removal of 50 mg/L Cr (VI) at 0.6 g/L dosage and pH 2. The adsorption process followed the Langmuir isotherm and pseudo-second-order kinetics, and the maximum adsorption capacity was 143.66 mg/g at 30 degrees Celsius. The adsorption process involved electrostatic adsorption, chelation, and redox reaction. Overall, this study provides valuable insights into the co-pyrolysis of UF resin and the adsorption capacity of pyrocarbon.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Analytical
Xiangfei Xue, Jin Mi, Fanfan Huang, Jingyue Wang, Lanxin Chen, Jie Liang
Summary: Catalytic co-pyrolysis of biomass and plastic waste is a promising approach for producing renewable biofuels and value-added chemicals. However, because of their different pyrolysis behaviors, the synergy between biomass and plastic is limited, and low-yield aromatics are produced. A modified segmented catalytic co-pyrolysis technology was proposed to enhance the synergy between feedstocks.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Energy & Fuels
Jiehan Zhang, Hang Yang, Guojun Kang, Jian Yu, Shiqiu Gao, Zhouen Liu, Changming Li, Xi Zeng, Shijian Lu
Summary: This study explores the co-pyrolysis of three tannery wastes and reveals the synergistic effect among different materials. Specifically, tanning sludge plays a significant role in promoting the conversion of char to tar/gas, resulting in improved volatile production. Moreover, the catalytic effect of mineral components also contributes to the enhanced co-pyrolysis performance.
Article
Chemistry, Multidisciplinary
Guorui Jin, Moru Wang, Jianwei Zhang, Ling Chen, Xin Liao, Weidong He
Summary: The co-pyrolysis technology that combines biomass can effectively and economically reduce NOx emissions. This study introduced co-pyrolysis to address excessive NOx emission during the incineration of waste energetic materials (EMs). Thermo-gravimetric analysis and fixed-bed experiments were conducted to investigate the kinetics and NOx emission characteristics of waste double-base propellant (DP), pine sawdust (PS), and their mixtures. The results showed a significant interaction between DP and PS, with the addition of PS improving the reactivity of co-pyrolysis. The lowest NOx emission was achieved during DP pyrolysis alone at 900°C, and co-pyrolysis at this temperature showed synergistic effects in reducing NOx emissions for different mixture ratios, with the best effect observed at a mixing ratio of 60 wt% DP and 40 wt% PS, resulting in a 72.11% reduction in actual NOx emissions compared to the expected value. This study provides valuable insights and data support for the clean, efficient, and cost-effective treatment of waste EMs, particularly for practical engineering strategies.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Thermodynamics
Yong Cheng, Fukai Song, Lei Fu, Saishuai Dai, Zhiming Yuan, Atilla Incecik
Summary: This paper investigates the accessibility of wave energy absorption by a dual-pontoon floating breakwater integrated with hybrid-type wave energy converters (WECs) and proposes a hydraulic-pneumatic complementary energy extraction method. The performance of the system is validated through experiments and comparative analysis.
Article
Thermodynamics
Jing Gao, Chao Wang, Zhanwu Wang, Jin Lin, Runkai Zhang, Xin Wu, Guangyin Xu, Zhenfeng Wang
Summary: This study aims to establish a new integrated method for biomass cogeneration project site selection, with a focus on the application of the model in Henan Province. By integrating Geographic Information System and Multiple Criterion Decision Making methods, the study conducts site selection in two stages, providing a theoretical reference for the construction of biomass cogeneration projects.
Article
Thermodynamics
Mert Temiz, Ibrahim Dincer
Summary: The current study presents a hybrid small modular nuclear reactor and solar-based system for sustainable communities, integrating floating and bifacial photovoltaic arrays with a small modular reactor. The system efficiently generates power, hydrogen, ammonia, freshwater, and heat for residential, agricultural, and aquaculture facilities. Thermodynamic analysis shows high energy and exergy efficiencies, as well as large-scale ammonia production meeting the needs of metropolitan areas. The hybridization of nuclear and solar technologies offers advantages of reliability, environmental friendliness, and cost efficiency compared to renewable-alone and fossil-based systems.
Editorial Material
Thermodynamics
Wojciech Stanek, Wojciech Adamczyk
Article
Thermodynamics
Desheng Xu, Yanfeng Li, Tianmei Du, Hua Zhong, Youbo Huang, Lei Li, Xiangling Duanmu
Summary: This study investigates the optimization of hybrid mechanical-natural ventilation for smoke control in complex metro stations. The results show that atrium fires are more significantly impacted by outdoor temperature variations compared to concourse/platform fires. The gathered high-temperature smoke inside the atrium can reach up to 900 K under a 5 MW train fire energy release. The findings provide crucial engineering insights into integrating weather data and adaptable ventilation protocols for smoke prevention/mitigation.
Article
Thermodynamics
Da Guo, Heping Xie, Mingzhong Gao, Jianan Li, Zhiqiang He, Ling Chen, Cong Li, Le Zhao, Dingming Wang, Yiwei Zhang, Xin Fang, Guikang Liu, Zhongya Zhou, Lin Dai
Summary: This study proposes a new in-situ pressure-preserved coring tool and elaborates its pressure-preserving mechanism. The experimental and field test results demonstrate that this tool has a high pressure-preservation capability and can maintain a stable pressure in deep wells. This study provides a theoretical framework and design standards for the development of similar technologies.
Article
Thermodynamics
Aolin Lai, Qunwei Wang
Summary: This study assesses the impact of China's de-capacity policy on renewable energy development efficiency (REDE) using the Global-MSBM model and the difference-in-differences method. The findings indicate that the policy significantly enhances REDE, promoting technological advancements and marketization. Moreover, regions with stricter environmental regulations experience a higher impact.
Article
Thermodynamics
Mostafa Ghasemi, Hegazy Rezk
Summary: This study utilizes fuzzy modeling and optimization to enhance the performance of microbial fuel cells (MFCs). By simulating and analyzing experimental data sets, the ideal parameter values for increasing power density, COD elimination, and coulombic efficiency were determined. The results demonstrate that the fuzzy model and optimization methods can significantly improve the performance of MFCs.
Article
Thermodynamics
Zhang Ruan, Lianzhong Huang, Kai Wang, Ranqi Ma, Zhongyi Wang, Rui Zhang, Haoyang Zhao, Cong Wang
Summary: This paper proposes a grey box model for fuel consumption prediction of wing-diesel hybrid vessels based on feature construction. By using both parallel and series grey box modeling methods and six machine learning algorithms, twelve combinations of prediction models are established. A feature construction method based on the aerodynamic performance of the wing and the energy relationship of the hybrid system is introduced. The best combination is obtained by considering the root mean square error, and it shows improved accuracy compared to the white box model. The proposed grey box model can accurately predict the daily fuel consumption of wing-diesel hybrid vessels, contributing to operational optimization and the greenization and decarbonization of the shipping industry.
Article
Thermodynamics
Huayi Chang, Nico Heerink, Junbiao Zhang, Ke He
Summary: This study examines the interaction between off-farm employment decisions between couples and household clean energy consumption in rural China, and finds that two-paycheck households are more likely to consume clean energy. The off-farm employment of women is a key factor driving household clean energy consumption to a higher level, with wage-employed wives having a stronger influence on these decisions than self-employed ones.
Article
Thermodynamics
Hanguan Wen, Xiufeng Liu, Ming Yang, Bo Lei, Xu Cheng, Zhe Chen
Summary: Demand-side management is crucial to smart energy systems. This paper proposes a data-driven approach to understand the relationship between energy consumption patterns and household characteristics for better DSM services. The proposed method uses a clustering algorithm to generate optimal customer groups for DSM and a deep learning model for training. The model can predict the possibility of DSM membership for a given household. The results demonstrate the usefulness of weekly energy consumption data and household socio-demographic information for distinguishing consumer groups and the potential for targeted DSM strategies.
Article
Thermodynamics
Xinglan Hou, Xiuping Zhong, Shuaishuai Nie, Yafei Wang, Guigang Tu, Yingrui Ma, Kunyan Liu, Chen Chen
Summary: This study explores the feasibility of utilizing a multi-level horizontal branch well heat recovery system in the Qiabuqia geothermal field. The research systematically investigates the effects of various engineering parameters on production temperature, establishes mathematical models to describe their relationships, and evaluates the economic viability of the system. The findings demonstrate the significant economic feasibility of the multi-level branch well system.
Article
Thermodynamics
Longxin Zhang, Songtao Wang, Site Hu
Summary: This investigation reveals the influence of tip leakage flow on the modern transonic rotor and finds that the increase of tip clearance size leads to a decline in rotor performance. However, an optimal tip clearance size can extend the rotor's stall margin.
Article
Thermodynamics
Kristian Gjoka, Behzad Rismanchi, Robert H. Crawford
Summary: This paper proposes a framework for assessing the performance of 5GDHC systems and demonstrates it through a case study in a university campus in Melbourne, Australia. The results show that 5GDHC systems are a cost-effective and environmentally viable solution in mild climates, and their successful implementation in Australia can create new market opportunities and potential adoption in other countries with similar climatic conditions.
Article
Thermodynamics
Jianwei Li, Guotai Wang, Panpan Yang, Yongshuang Wen, Leian Zhang, Rujun Song, Chengwei Hou
Summary: This study proposes an orientation-adaptive electromagnetic energy harvester by introducing a rotatable bluff body, which allows for self-regulation to cater for changing wind flow direction. Experimental results show that the output power of the energy harvester can be greatly enhanced with increased rotatory inertia of the rotating bluff body, providing a promising solution for harnessing wind-induced vibration energy.